Gas cooking-stove.



PATENTBD APR. 2, 1907.

V. W.l BLANCHARD.

GAS COOKING STOVE.

APPLICATION FILED JAN, 22, 1906.

NoK 849,321.

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VIRGIL W.

BLANCHARD, OF NEW YORK, N. Y.

GAS COOKING-STOVE.

Application led January 22,1906. Serial No. 297,265.

Specification of Letters Patent.

Patented April 2, 1907.

To all whom, it 'n1/(ty con/cern:

Be it known that l, VIRGIL Vv". BLANCHARD, of New York, in the county of N ew York and State of New York, have invented certain new and useful improvements in Gas Cooking-Stoves; and l hereby declare that the'following is a full, clear, and exact description thereof, reference being had to 'the accompanying drawings, which form part of this specification.

This invention is an improvement preferably in gas cooking stoves or ranges of the type shown and described in my application for gas cooking stoves or ranges, Serial No. 297,251, iiled January 22, 1900.

The present invention resides particularly in the novel construction of the range or cooking portion of the apparatus, wherebyY loss of heat by conduction or radiation through the walls of the range is prevented and as a consequence are maintained at a high temperature throughout the entire length of their travel.

The invention also includes the novel construction of the range extension, whereby the parts thereof may be assembled quickly and expeditiously.

The invention therefore consists in the novel construction and combination of parts, as hereinafter claimed, and will be fully understood from the following description and the drawings, in which- Figure 1 is a plan view of the range with the top plate or cover removed in order to more clearly show the interior construction thereof. Fig. 2 is a longitudinal section through the complete range. Fig. is a transverse section on line 3 3, Fig. 2 Fig. 4 is a detail of one of the parts detached.

The' stove portion A of the range is preferably constructed as described in my application for gas cooking-stoves7 Serial No.

l 297,250, filed January 22, 1906, and therefore need' not be specifically described herein. It has a burner B, into which gaseous mixtures are discharged from the tube C, the construction being such that the combustible elements are completely oxidized, and a large volume of hot gases is delivered at the outlet a of the stove into the range extension thereof, the construction of which latter is the particular subject of the present invention. This range extension comprises a bottom plate D, which is connected to the casing A adjacent to outlet (t and extends horizontally under the length of the range.

Above the bottom plate D is an inner plate E, between which and plate D is a non-heatconducting packing c, preferably of asbestos. In the example shown the range has three griddles or heating-sections 1'2 3. The range also has external side walls D', 'which are connected to the upper portion of the stove A, as shown at d in Fig. 1, or in any other suitable manner. The top plate D2 is supported on the sides D and preferably extends over and forms the top of a stove A, as indicated in Fig. 2. 'lhis plate lD2 is provided with openings over the stove and over each section 1 2 8, which openings may be closed by griddles a (L3 c over the stove and sections 1 and 2, respectively; but I preferably provide the plate above the section 3 with an upstanding flange D", on which a water-heating vessel lV may be placed. The griddles o1' plates c a? c are preferably of the usual nested construction indicated in the drawings, so that they can be removed to allow vessels of different size to be heated.

The side plates D are provided at suitableI intervals with inwardly-proj eeting verticallydisposed pairs of ribs D3 for the reception of the ends of transversely-arranged partitionplates l?, which partition-plates are provided on their lower sides with openings f and on i each side of said openings with pairs of vertical ribs j", with which are engageiil longitudinally-disposed plates G, which extend parallel with the side plates D, but are separated therefrom by spaces which may be filled with non-heit-conducting material c', as shown. Between the innermost plate F and the adaeent outlet ct are arranged diagonal plates F2, the space between which and the side walls is filled by non-hc:tt-conducting packing e2.

The outer end of the range is formed by a plate D, connected with the bottom plate D and the top plate D2, and adjacent this plate Di and separated therefrom is a transverse plate F3, the space between the plate F and D5 being filled with non-heat-co'nducting packing c3. By this means the flue-passages through the range extension of the furnaces are completely surrounded on sides and bottom with non-heat-conducting layers of material, whereby conduction and radiation of heat of the gases is prevented, and in consequence the temperature of the gases is easily maintained at a high point.

Vithin each section 1 and 2 is located an L-shaped casting H, which has a horizontal part h resting upon the flange j" of the adjacent preceding plate F above the opening f therein and a vertical portion h, which rests upon the bottom adjacent the next following plate F. These castings H divide the sections l and?. into a lo'wer inlet-chamber and upper heating-chamber and a descending chamber or flue which communicates 'with l the adjacent section through the opening f in the interposed partition-plate F. The castings H may have openings in their upper sides, as shown, in which may be fitted removable perforated plates h3. The castings H may be held in position by flanges g on the inner surface of plates G and by lugs E2 on the bottom, as shown. Instead of placing a casting H in the last section 3 a partitionplate H2 may be arranged therein and supported on the flange f2 of the adjacent transverse plate F and a iange f3 on the plate F3, as shown.

The course of the gases in passing through this range is fully described in my application for gas cooking stoves and ranges, filed January 22, 1906, Serial No. 297,251. It will be observed from the described construction the range can be readily assembled and as many heating-sections can be formed therein as is desired by simply elongating side plates D and bottom plates D. After these side and bottom plates are in position and the interior bottom lining and plate is in place the partition-plates F can be placed in position, then the longitudinal plates G can easily be put in place, and the side packings can be placed in position before the top plate is put on. In this manner a range of any desired length for the economical use of heat can be easily and cheaply constructed.

Having thus described my invention, what I therefore claim as new, and desire to secure by Letters Patent thereon, is- Y l. In a range, the combination of bottom and side plates, and atop plate having grid- (lle-openings therein, a false bottom plate and a non-heat-conducting layer between the false bottom and bottom plate with transversely-arranged partitions, and longitudinally-arranged plates between the partitions parallel with the side walls; with griddles in the top plate and L-shaped castings under the griddles whereby products of combustion are directed upwardly against the latter.

2. In combination, a heating-range having transverse partition-plates between its side walls provided with flue-openings, and longitudinally-disposed plates arranged between the said partition-plates and adjacent the side walls thereof to form dead-air spaces at the sides of the range.

3. In a range, the combination of bottom and side plates, and a top plate having grid- (lle-openings therein, with a false bottom plate, transversely-arranged partitions provided with hue-openings and longitudinallydisposed plates between the partitions arranged parallel with the side walls to form dead-air spaces at the sides of the range.

4. In combination, a heating-range having removable transverse partition-plates as F between its side walls, and longitudinallydisposed removable plates as G between the partition-plates and adjacent to and parallel with the side walls, substantially as described.

5. In a range, the combination of bottom, side and top plates, transverse plates F provided with openings for the passage of gases on their under side, longitudinally-disposed plates G between the partition-plates and parallel with but spaced from the side walls, and non-heat-conducting material lling the spaces between the longitudinal plates and walls.

6. The combination with a gas-burning stove, of a range extension connected with the outlet of said stove, transversely-arranged partitions F in said extension and longitudinally-arranged plates G adjacent to but spaced apart from the side walls, and L-shaped castings H arranged between the partitions.

7. The combination with a gas-burning stove, of a range extension connected with the outlet of said stove, transversely-arranged partitions F, longitudinally-arranged plates G interposed between said partitions, B -shaped castings I-I, a false bottom underlying the partitions, a non-heat-conducting packing interposed between the false bottom, and bottom plate of the range, and non-heatconducting material in the spaces between the longitudinal plates and the side walls of the range.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

VIRGIL IV. BLANCHARD. 

